Moved equals to superclass. Can now build string-based coordinate systems. Removed active method.
Moved equals to superclass.
Can now build string-based coordinate systems.
Removed active method.

Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode